2463458

Information

• Patent Grant
• 2463458

• References
• Source

• Patent Number

  2,463,458

• Date Filed

  Not available

• Date Issued

  Tuesday, March 1, 1949
  75 years ago

• CPC

  • F04B43/0018 - the periphery of the flexible member being not fixed to the pump-casing, but acting as a valve
  • F04B43/0063 - bell-shaped flexible members

• US Classifications

  • 417 - Pumps
  • 004 - Baths, closets, sinks, and spittoons
  • 092 - Expansible chamber devices